Node-RED: Lecture 6 – Example 6.3 Using context to generate rolling averages

Example 6.3 Using context to generate rolling averages

A special module called context, used to store data between function invocations, is available to function nodes. This can be useful when the function needs to retain state to do its processing. For example, in a typical Industrial IoT scenario, it may be necessary to compute the average value of a sensor’s data readings over a period of time.… Read the rest

Node-RED: Lecture 5 – The Node-RED programming model

As you’ve seen in previous lectures, Node-RED uses a visual flow-based programming paradigm[1]. This is not unique to Node-RED. Similar approaches have been used in many other domains such as music and multimedia (Max MSP), toys (Lego Mindstorms), enterprise application integration and industrial automation (LabVIEW).  Like these tools, Node-RED makes it easy to switch between design and development for rapid integration, prototyping and development tasks.  … Read the rest

As you’ve seen in previous lectures, Node-RED uses a visual flow-based programming paradigm[1]. This is not unique to Node-RED. Similar approaches have been used in many other domains such as music and multimedia (Max MSP), toys (Lego Mindstorms), enterprise application integration and industrial automation (LabVIEW).  Like these tools, Node-RED makes it easy to switch between design and development for rapid integration, prototyping and development tasks.  … Read the rest